Exponential growth pattern post-2010, with recent acceleration
Last 5 years account for 48.7% of all publications
Average annual growth rate: 20.1%
🌐 Collaboration Evolution
Shift from bilateral to multilateral in 2020, 2021, 2022, 2023, 2024
Network expansion: average countries per paper increasing
Funding and recent years strongly predict multilateralization
🔓 Open Access Revolution
OA adoption crossed 50% in 1991, 2021, 2022, 2023, 2024
OA now dominates output across all disciplines
Fastest adoption in Life Sciences and Health Sciences
🔬 Disciplinary Dynamics
Physical Sciences maintain leadership but declining share
Life Sciences rapid growth, especially post-2010
Increasing interdisciplinary research
Subject diversification index rising
📈 Quality Improvements
Upward trend in Q1 publications
Mean SJR scores increasing gradually
Citation patterns show healthy maturation
Recent cohorts publishing in higher-impact journals
8.2 Implications for Policy
Sustained Growth Trajectory: The exponential growth pattern suggests Japan-Vietnam collaboration has reached critical mass and shows no signs of slowing.
Internationalization Success: The shift to multilateral collaborations indicates successful integration into broader research networks beyond bilateral ties.
Open Science Leadership: Early and rapid OA adoption positions this partnership as a leader in open science practices in Asia.
Quality Over Quantity: Simultaneous increases in output AND quality (Q1 rates, SJR scores) demonstrate maturing research capacity.
Disciplinary Balance: While Physical Sciences dominate, growth in Life Sciences and Health Sciences reflects diversification and alignment with SDGs.